Outlook is requesting data from server

Stélvia Calisto 1 Reputation point
2021-11-14T21:21:19.787+00:00

Hello,

After upgrade exchange server to the cumulative update 22 (CU22), all users receive the following error in Outlook: Outlook requests data from the server.

We check the status of the update and everything seems fine. In the server's Eventviewer, only the information logs.

This is strange because OWA and ECP work fine! The problem is in the Outlook connection and exchange.

Thanks

Outlook Management
Outlook Management
Outlook: A family of Microsoft email and calendar products.Management: The act or process of organizing, handling, directing or controlling something.
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Microsoft Exchange Online Management
Microsoft Exchange Online Management
Microsoft Exchange Online: A Microsoft email and calendaring hosted service.Management: The act or process of organizing, handling, directing or controlling something.
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  1. Aaron Xue-MSFT 2,581 Reputation points Microsoft Vendor
    2021-11-15T08:59:23.723+00:00

    Hi,@Stélvia Calisto

    To get more information, I would like to ask you following questions.

    1.How many exchange servers do you have in your organization?

    2.Have you tried to switch outlook to online mode?

    You can follow these steps to switch it.

    1.Find the ‘Mail’ on the control panel.

    2.Select the “Email Accounts” in account setting.

    3.Click “change” , then deselect “Use Cached Exchange Mode”.
    149326-2.png

    If the issue still exists, you can try to create a new profile, then use the new profile.

    1. In Mail Setup
    2. Select “Show Profiles”
      149305-4.png
    3. Select "Add", and type a name for the new profile, then select OK.
    4. The “Add Account” window will appear, then Enter your Email address and password.
    5. In “Always use this profile” option, choose the new profile, then open outlook app.
      149362-5.png 149269-7.png

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

  2. Aaron Xue-MSFT 2,581 Reputation points Microsoft Vendor
    2021-11-23T10:00:39.847+00:00

    Hi,@Stélvia Calisto

    Thanks for your update.

    1.Could you share screenshots of the error and outlook connection status in comments?
    2.Which version of Exchange Server CU did you upgrade to CU22?
    3.Could outlook sync mails or stuck in processing?

    1.Have you changed Exchange to online mode?
    If you haven’t, please follow the article to change it.
    Turn on Cached Exchange Mode (microsoft.com)

    2.If the issue still exists, you can try creating a new database and move a mailbox to the new database.
    Then check if outlook is working.
    If it is, please move all mailboxes to the new database.

    If the response is helpful, please click "Accept Answer" and upvote it.

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

  3. Stélvia Calisto 1 Reputation point
    2021-11-26T09:19:17.83+00:00

    Hi,

    This is weird but my Outlook is working fine now!

    Thanks